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23282081 = 83280507
BaseRepresentation
bin101100011010…
…0000110100001
31121210212000022
41120310012201
521430011311
62151003225
7401615534
oct130640641
947725008
1023282081
1112162199
127969515
134a922a4
143140a1b
15209d5db
hex16341a1

23282081 has 4 divisors (see below), whose sum is σ = 23562672. Its totient is φ = 23001492.

The previous prime is 23282071. The next prime is 23282089. The reversal of 23282081 is 18028232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23282081 - 210 = 23281057 is a prime.

It is a super-2 number, since 2×232820812 = 1084110591381122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23282081.

It is not an unprimeable number, because it can be changed into a prime (23282089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140171 + ... + 140336.

It is an arithmetic number, because the mean of its divisors is an integer number (5890668).

Almost surely, 223282081 is an apocalyptic number.

It is an amenable number.

23282081 is a deficient number, since it is larger than the sum of its proper divisors (280591).

23282081 is an equidigital number, since it uses as much as digits as its factorization.

23282081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280590.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 23282081 is about 4825.1508784700. The cubic root of 23282081 is about 285.5445871212.

The spelling of 23282081 in words is "twenty-three million, two hundred eighty-two thousand, eighty-one".

Divisors: 1 83 280507 23282081